Unity Remote 5 android doesnt work.,Unity Remot 5 android doesnt work

I tried everything. I updatet my drivers, USB-Debugging is on, Device is on Any Android Device, Build-Modus is Android, I installed the Android SDK with Unity. I have a Samsung Galaxy A7 and I am using Unity 2019.3.7f1. Does anyone know what I can do? ,I spend hours finding out what is wrong. I have an Samsung Galaxy A7 with Android 9. I am using Unity 2019.3.7f1. Build modus is Android, Device is on "Any Android Device", I installed the SDK with Unity, I did a driver update, USB-Debugging is allowed and I did everything. I tried everything. Does anyone know what I can do?